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Sorry, Banning 'Killer Robots' Just Isn't Practical

LATE SUNDAY, 116 entrepreneurs, including Elon Musk, released a letter to the United Nations warning of the dangerous “Pandora’s Box” presented by weapons that make their own decisions about when to kill. Publications including The Guardian and The Washington Post ran headlines saying Musk and his cosigners had called for a “ban” on “killer robots.”

Those headlines were misleading. The letter doesn’t explicitly call for a ban, although one of the organizers has suggested it does. Rather, it offers technical advice to a UN committee on autonomous weapons formed in December. The group’s warning that autonomous machines “can be weapons of terror” makes sense. But trying to ban them outright is probably a waste of time.